2
INSTALLATION
14
OPTIWAVE X400
www.krohne.com
10/2017 - 4006413501 - AD NEPSI OPTIWAVE x400 R01 en
The operating pressure of the heating/cooling system must not be more than 6 barg / 87 psig.
The process pressure must not be more than 2 barg / 29 psig.
The heating/cooling fluid temperature must be less than the ignition temperature of the gas or
vapour atmosphere
The heating/cooling fluid temperature must be between the minimum and maximum limits for
the gasket (for more data, refer to the handbook) and the type of antenna (for more data, refer to
Ambient and process connection temperatures
on page 14)
2.3 Operating conditions
2.3.1 Ambient and process connection temperatures
The tables that follow are applicable in these conditions:
•
Device installation must agree with the instructions given in the handbook.
•
Make sure that the device temperature does not increase because of other heat sources
(sunlight, adjacent system components etc.). The device must not be operated above the
maximum permitted ambient temperature.
•
Do not put insulation around the signal converter. Make sure that the airflow around the
signal converter is sufficient. It is permitted to have insulation on the pipe or stilling well and
the process connection.
WARNING!
The gasket temperature must be in the approved limits. For more data, refer to "Pressure and
temperature ranges" in the Installation chapter of the handbook. The type of gasket and gasket
material must agree with the process.
WARNING!
The reference point for the process temperature is the flange facing (flanges), the thread stop
(threaded connections) or the facing (hygienic connections) of the device. In the tables that
follow, this reference point will be referred to as the "process connection temperature".
WARNING!
An explosive atmosphere is a mixture of air and flammable gases, vapour, mist or dust in
atmospheric conditions. If you do not use the device in these conditions (T
atm
= -20...+60
°
C /
-4...+140
°
F and p
atm
= 0.8...1.1 barg / 11.60...15.95 psig), do an analysis of the risk of ignition.
T
atm
= atmospheric temperature and p
atm
= atmospheric pressure.
WARNING!
Make sure that the maximum process connection temperature and maximum ambient
temperature are not more than the values given in the tables.
